In shops I frequent, there is usually a single line for all 3-8 self-checkout machines,
but separate lines for each individual cashier.
I've noticed that the line for self-checkout is usually roughly
the same length as the lines for individual cash registers, regardless
of how many machines there are.
I'm not sure if people just don't like self-checkout or if they have failed
to notice that the "go to the shortest line" heuristic doesn't work anymore
when one of the lines moves much faster than the others.
I've noticed that the line for self-checkout is usually roughly the same length as the lines for individual cash registers, regardless of how many machines there are.
I'm not sure if people just don't like self-checkout or if they have failed to notice that the "go to the shortest line" heuristic doesn't work anymore when one of the lines moves much faster than the others.